toggle visibility Search & Display Options

Select All    Deselect All
 |   | 
Details
   print
  Records Links
Author Groc, S.; Delabie, J.H.C.; Fernandez, F.; Petitclerc, F.; Corbara, B.; Leponce, M.; Céréghino, R.; Dejean, A. doi  openurl
  Title Litter-dwelling ants as bioindicators to gauge the sustainability of small arboreal monocultures embedded in the Amazonian rainforest Type Journal Article
  Year 2017 Publication Ecological Indicators Abbreviated Journal  
  Volume 82 Issue Pages 43-49  
  Keywords Ant diversity; Community alteration; Forest species; Functional traits; Human disturbance; Tree monocultures  
  Abstract One of the greatest threats to biodiversity and the sustainable functioning of ecosystems is the clearing of forests for agriculture. Because litter-dwelling ants are very good bioindicators of man-made disturbance, we used them to compare monospecific plantations of acacia trees, cocoa trees, rubber trees and pine trees with the surrounding Neotropical rainforest (in contrast to previous studies on forest fragments embedded in industrial monocultures). Although the global level of species turnover was weak, species richness decreased along a gradient from the forest (including a treefall gap) to the tree plantations among which the highest number of species was noted for the cocoa trees, which are known to be a good compromise between agriculture and conservation. Species composition was significantly different between natural habitats and the plantations that, in turn, were different from each other. Compared to the forest, alterations in the ant communities were (1) highest for the acacia and rubber trees, (2) intermediate for the cocoa trees, and, (3) surprisingly, far lower for the pine trees, likely due to very abundant litter. Functional traits only separated the rubber tree plantation from the other habitats due to the higher presence of exotic and leaf-cutting ants. This study shows that small monospecific stands are likely sustainable when embedded in the rainforest and that environmentally-friendly strategies can be planned accordingly. © 2017 Elsevier Ltd  
  Address (up) Ecolab, Université de Toulouse, CNRS, INPT, UPS, Toulouse, France  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN Medium  
  Area Expedition Conference  
  Notes Export Date: 9 July 2017 Approved no  
  Call Number EcoFoG @ webmaster @ Serial 758  
Permanent link to this record
 

 
Author Talaga, S.; Dezerald, O.; Carteron, A.; Leroy, C.; Carrias, J.-F.; Céréghino, R.; Dejean, A. url  doi
openurl 
  Title Urbanization impacts the taxonomic and functional structure of aquatic macroinvertebrate communities in a small Neotropical city Type Journal Article
  Year 2017 Publication Urban Ecosystems Abbreviated Journal Urban Ecosystems  
  Volume 20 Issue 5 Pages 1001-1009  
  Keywords Aedes aegypti; Bioindicator; Diversity; Functional traits; Tank bromeliads; Urban ecology  
  Abstract Due to habitat fragmentation, resource disruption and pollution, urbanization is one of the most destructive forms of anthropization affecting ecosystems worldwide. Generally, human-mediated perturbations dramatically alter species diversity in urban sites compared to the surroundings, thus influencing the functioning of the entire ecosystem. We investigated the taxonomic and functional diversity patterns of the aquatic macroinvertebrate communities in tank bromeliads by comparing those found in a small Neotropical city with those from an adjacent rural site. Changes in the quality of detrital inputs in relation to lower tree diversity and the presence of synanthropic species are likely important driving forces behind the observed structural changes in the urban site. Leaf-litter processors (i.e., shredders, scrapers) were positively affected in the urban site, while filter-feeders that process smaller particles produced by the activity of the shredders were negatively affected. Because we cannot ascertain whether the decline in filter-feeders is related to food web-mediated effects or to competitive exclusion (Aedes aegypti mosquitoes were present in urban bromeliads only), further studies are necessary to account for the effects of intra-guild competition or inter-guild facilitation. © 2017, Springer Science+Business Media New York.  
  Address (up) Ecolab, Université de Toulouse, CNRS, INPT, UPS, Toulouse, France  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN Medium  
  Area Expedition Conference  
  Notes Cited By :1; Export Date: 18 December 2017 Approved no  
  Call Number EcoFoG @ webmaster @ Serial 776  
Permanent link to this record
 

 
Author Bodin, S.C.; Scheel-Ybert, R.; Beauchene, J.; Molino, J.-F.; Bremond, L. url  doi
openurl 
  Title CharKey: An electronic identification key for wood charcoals of French Guiana Type Journal Article
  Year 2019 Publication IAWA Journal Abbreviated Journal Iawa J.  
  Volume 40 Issue 1 Pages 75-91  
  Keywords anthracology; Charcoal anatomy; computeraided identification; Note: Supplementary material can be accessed in the online edition of this journal via brill.com/iawa.; tropical flora; Xper 2  
  Abstract Tropical tree floras are highly diverse and many genera and species share similar anatomical patterns, making the identification of tropical wood charcoal very difficult. Appropriate tools to characterize charcoal anatomy are thus needed to facilitate and improve identification in such species-rich areas. This paper presents the first computer-aided identification key designed for charcoals from French Guiana, based on the wood anatomy of 507 species belonging to 274 genera and 71 families, which covers respectively 28%, 67% and 86% of the tree species, genera and families currently listed in this part of Amazonia. Species of the same genus are recorded together except those described under a synonym genus in Détienne et al. (1982) that were kept separately. As a result, the key contains 289 'items' and mostly aims to identify charcoals at the genus level. It records 26 anatomical features leading to 112 feature states, almost all of which are illustrated by SEM photographs of charcoal. The descriptions were mostly taken from Détienne et al.'s guidebook on tropical woods of French Guiana (1982) and follow the IAWA list of microscopic features for hardwood identification (Wheeler et al. 1989). Some adjustments were made to a few features and those that are unrelated to charcoal identification were excluded. The whole tool, named CharKey, contains the key itself and the associated database including photographs. It can be downloaded on Figshare at https://figshare.com/s/d7d40060b53d2ad60389 (doi: 10.6084/m9.figshare.6396005). CharKey is accessible using the free software Xper 2 , specifically conceived for taxonomic description and computer aided-identification.  
  Address (up) Ecole Pratique des Hautes Etudes, PSL Research University, Paris, France  
  Corporate Author Thesis  
  Publisher Brill Academic Publishers Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 09281541 (Issn) ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number EcoFoG @ webmaster @ Serial 864  
Permanent link to this record
 

 
Author Hénaut, Y.; Corbara, B.; Pélozuelo, L.; Azémar, F.; Céréghino, R.; Herault, B.; Dejean, A. pdf  url
doi  openurl
  Title A tank bromeliad favors spider presence in a neotropical inundated forest Type Journal Article
  Year 2014 Publication PLoS ONE Abbreviated Journal PLoS ONE  
  Volume 9 Issue 12 Pages e114592  
  Keywords  
  Abstract Tank bromeliads are good models for understanding how climate change may affect biotic associations. We studied the relationships between spiders, the epiphytic tank bromeliad, Aechmea bracteata, and its associated ants in an inundated forest in Quintana Roo, Mexico, during a drought period while, exceptionally, this forest was dry and then during the flooding that followed. We compared spider abundance and diversity between “Aechmea-areas” and “control areas” of the same surface area. We recorded six spider families: the Dipluridae, Ctenidae, Salticidae, Araneidae, Tetragnathidae and Linyphiidae among which the funnel-web tarantula, Ischnothele caudata, the only Dipluridae noted, was the most abundant. During the drought period, the spiders were more numerous in the Aechmea areas than in the control areas, but they were not obligatorily associated with the Aechmea.
During the subsequent flooding, the spiders were concentrated in the A. bracteata patches, particularly those sheltering an ant colony. Also, a kind of specificity existed between certain spider taxa and ant species, but varied between the drought period and subsequent flooding. We conclude that climatic events modulate the relationship between A. bracteata patches and their associated fauna. Tank bromeliads, previously considered only for their ecological importance in supplying food and water during drought, may also be considered refuges for spiders during flooding. More generally, tank bromeliads have an important role in preserving non-specialized fauna in inundated forests.
 
  Address (up) Ecologie des Forêts de Guyane, Campus AgronomiqueKourou, France  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN Medium  
  Area Expedition Conference  
  Notes Export Date: 23 December 2014 Approved no  
  Call Number EcoFoG @ webmaster @ Serial 573  
Permanent link to this record
 

 
Author Brouard, O.; Céréghino, R.; Corbara, B.; Leroy, C.; Pelozuelo, L.; Dejean, A.; Carrias, J.-F. url  openurl
  Title Understorey environments influence functional diversity in tank-bromeliad ecosystems Type Journal Article
  Year 2012 Publication Freshwater Biology Abbreviated Journal Freshw. Biol.  
  Volume 57 Issue 4 Pages 815-823  
  Keywords Food webs; French Guiana; Invertebrates; Microorganisms; Phytotelmata; Rainforest  
  Abstract A substantial fraction of the freshwater available in neotropical forests is impounded within the rosettes of bromeliads that form aquatic islands in a terrestrial matrix. The ecosystem functioning of bromeliads is known to be influenced by the composition of the contained community but it is not clear whether bromeliad food webs remain functionally similar against a background of variation in the understorey environment. We considered a broad range of environmental conditions, including incident light and incoming litter, and quantified the distribution of a very wide range of freshwater organisms (from viruses to macroinvertebrates) to determine the factors that influence the functional structure of bromeliad food webs in samples taken from 171 tank-bromeliads. We observed a gradient of detritus-based to algal-based food webs from the understorey to the overstorey. Algae, rotifers and collector and predatory invertebrates dominated bromeliad food webs in exposed areas, whereas filter-feeding insects had their highest densities in shaded forest areas. Viruses, bacteria and fungi showed no clear density patterns. Detritus decomposition is mainly due to microbial activity in understorey bromeliads where filter feeders are the main consumers of microbial and particulate organic matter (POM). Algal biomass may exceed bacterial biomass in sun-exposed bromeliads where amounts of detritus were lower but functional diversity was highest. Our results provide evidence that tank-bromeliads, which grow in a broad range of ecological conditions, promote aquatic food web diversity in neotropical forests. Moreover, although bromeliad ecosystems have been categorised as detritus-based systems in the literature, we show that algal production can support a non-detrital food web in these systems. © 2012 Blackwell Publishing Ltd.  
  Address (up) Ecologie des Forêts de Guyane, UMR, CNRS 8172, Campus Agronomique, 97379 Kourou Cedex, France  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 00465070 (Issn) ISBN Medium  
  Area Expedition Conference  
  Notes Export Date: 21 March 2012; Source: Scopus; Coden: Fwbla; doi: 10.1111/j.1365-2427.2012.02749.x; Language of Original Document: English; Correspondence Address: Céréghino, R.; INP, UPS EcoLab (Laboratoire Ecologie Fonctionnelle et Environnement), Université de Toulouse, 118 Route de Narbonne, 31062 Toulouse, France; email: regis.cereghino@univ-tlse3.fr Approved no  
  Call Number EcoFoG @ webmaster @ Serial 383  
Permanent link to this record
 

 
Author Guevara, J.E.; Damasco, G.; Baraloto, C.; Fine, P.V.A.; Peñuela, M.C.; Castilho, C.; Vincentini, A.; Cárdenas, D.; Wittmann, F.; Targhetta, N.; Phillips, O.; Stropp, J.; Amaral, I.; Maas, P.; Monteagudo, A.; Jimenez, E.M.; Thomas, R.; Brienen, R.; Duque, A.; Magnusson, W.; Ferreira, C.; Honorio, E.; de Almeida Matos, F.; Arevalo, F.R.; Engel, J.; Petronelli, P.; Vasquez, R.; ter Steege, H. url  openurl
  Title Low Phylogenetic Beta Diversity and Geographic Neo-endemism in Amazonian White-sand Forests Type Journal Article
  Year 2016 Publication Biotropica Abbreviated Journal Biotropica  
  Volume 48 Issue 1 Pages 34-46  
  Keywords Amazon; Neo-endemism; Phylogenetic beta diversity; Recent diversification; White sands  
  Abstract Over the past three decades, many small-scale floristic studies of white-sand forests across the Amazon basin have been published. Nonetheless, a basin-wide description of both taxonomic and phylogenetic alpha and beta diversity at regional scales has never been achieved. We present a complete floristic analysis of white-sand forests across the Amazon basin including both taxonomic and phylogenetic diversity. We found strong regional differences in the signal of phylogenetic community structure with both overall and regional Net Relatedness Index and Nearest Taxon Index values found to be significantly positive leading to a pattern of phylogenetic clustering. Additionally, we found high taxonomic dissimilarity but low phylogenetic dissimilarity in pairwise community comparisons. These results suggest that recent diversification has played an important role in the assembly of white-sand forests causing geographic neo-endemism patterns at the regional scale. © 2016 The Association for Tropical Biology and Conservation.  
  Address (up) Ecology and Biodiversity Group, Utrecht University, Utrecht, Netherlands  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN Medium  
  Area Expedition Conference  
  Notes Cited By :3; Export Date: 12 February 2016 Approved no  
  Call Number EcoFoG @ webmaster @ Serial 660  
Permanent link to this record
 

 
Author Lehnebach, R.; Bossu, J.; Va, S.; Morel, H.; Amusant, N.; Nicolini, E.; Beauchene, J. pdf  url
doi  openurl
  Title Wood density variations of legume trees in French Guiana along the shade tolerance continuum: Heartwood effects on radial patterns and gradients Type Journal Article
  Year 2019 Publication Forests Abbreviated Journal Forests  
  Volume 10 Issue 2 Pages  
  Keywords French Guiana; Growth-mortality rate; Heartwood; Heartwood extractives; Legumes; Sapwood; Shade tolerance; Tropical tree species; Wood density variations  
  Abstract Increasing or decreasing wood density (WD) from pith to bark is commonly observed in tropical tree species. The different types of WD radial variations, long been considered to depict the diversity of growth and mechanical strategies among forest guilds (heliophilic vs. shade-tolerant), were never analyzed in the light of heartwood (HW) formation. Yet, the additional mass of chemical extractives associated to HW formation increases WD and might affect both WD radial gradient (i.e., the slope of the relation between WD and radial distance) and pattern (i.e., linear or nonlinear variation). We studied 16 legumes species from French Guiana representing a wide diversity of growth strategies and positions on the shade-tolerance continuum. Using WD measurements and available HW extractives content values, we computed WD corrected by the extractive content and analyzed the effect of HW on WD radial gradients and patterns. We also related WD variations to demographic variables, such as sapling growth and mortality rates. Regardless of the position along the shade-tolerance continuum, correcting WD gradients reveals only increasing gradients. We determined three types of corrected WD patterns: (1) the upward curvilinear pattern is a specific feature of heliophilic species, whereas (2) the linear and (3) the downward curvilinear patterns are observed in both mid- and late-successional species. In addition, we found that saplings growth and mortality rates are better correlated with the corrected WD at stem center than with the uncorrected value: taking into account the effect of HW extractives on WD radial variations provides unbiased interpretation of biomass accumulation and tree mechanical strategies. Rather than a specific feature of heliophilic species, the increasing WD gradient is a shared strategy regardless of the shade tolerance habit. Finally, our study stresses to consider the occurrence of HW when using WD.  
  Address (up) Ecology of Guianan Forests (EcoFoG), AgroParisTech, French Agricultural Research and International Cooperation Organization (CIRAD), French National Centre for Scientific Research (CNRS), French National Institute for Agricultural Research (INRA), Université des Antilles, Université de Guyane, Kourou, French Guiana, 97310, France  
  Corporate Author Thesis  
  Publisher Mdpi Ag Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 19994907 (Issn) ISBN Medium  
  Area Expedition Conference  
  Notes Export Date: 1 February 2019; Correspondence Address: Lehnebach, R.; Laboratory of Botany and Modeling of Plant Architecture and Vegetation (AMAP), French Agricultural Research and International Cooperation Organization (CIRAD)France; email: romain.lehnebach@cirad.fr; Funding details: Agence Nationale de la Recherche, ANR; Funding details: Federación Española de Enfermedades Raras, FEDER; Funding text 1: The authors thank Grégoire Vincent, Jean-François Molino, and Daniel Sabatier for providing demographical data.). The French Agricultural Research Centre for International Development (CIRAD) funded Romain Lehnebach PhD scholarship. This research project was also funded by the European Regional Development Fund (FEDER, no 31703) and benefits from an 'Investissements d'Avenir' grant managed by the French National Research Agency (CEBA, ref. ANR-10-LABX-25-01).; References: Kollmann, F.F.P., Côté, W.A., (1984) Principles of Wood Science and Technology: I Solid Wood, , Springer: Berlin, Germany; Muller-Landau, H.C., Interspecific and inter-site variation in wood specific gravity of tropical trees (2004) Biotropica, 36, pp. 20-32; Van Gelder, H.A., Poorter, L., Sterck, F.J., Wood mechanics, allometry, and life-history variation in a tropical rain forest tree community (2006) New Phyt, 171, pp. 367-378; Chave, J., Coomes, D., Jansen, S., Lewis, S.L., Swenson, N.G., Zanne, A.E., Towards a worldwide wood economics spectrum (2009) Ecol. Lett, 12, pp. 351-366; Wright, S.J., Kitajima, K., Kraft, N.J.B., Reich, P.B., Wright, I.J., Bunker, D.E., Condit, R., Díaz, S., Functional traits and the growth-mortality trade-off in tropical trees (2010) Ecology, 91, pp. 3664-3674; Niklas, K.J., Influence of tissue density-specific mechanical properties on the scaling of plant height (1993) Ann. Bot, 72, pp. 173-179; Niklas, K.J., Spatz, H.-C., Worldwide correlations of mechanical properties and green wood density (2010) Am. J. Bot, 97, pp. 1587-1594; Pratt, R.B., Jacobsen, A.L., Ewers, F.W., Davis, S.D., Relationships among xylem transport, biomechanics and storage in stems and roots of nine Rhamnaceae species of the California chaparral (2007) New Phyt, 174, pp. 787-798; Lachenbruch, B., Moore, J., Evans, R., Radial Variation in Wood Structure and Function in Woody Plants, and Hypotheses for Its Occurrence (2011) In Size-and Age-Related Changes in Tree Structure and Function, 4, pp. 121-164. , Meinzer, F.C., Lachenbruch, B., Dawson, T.E., Eds.; Springer: Berlin, Germany; Hacke, U.G., Sperry, J.S., Pockman, W.T., Davis, S.D., McCulloh, K.A., Trends in wood density and structure are linked to prevention of xylem implosion by negative pressure (2001) Oecologia, 126, pp. 457-461; Markesteijn, L., Poorter, L., Paz, H., Sack, L., Bongers, F., Ecological differentiation in xylem cavitation resistance is associated with stem and leaf structural traits (2011) Plant Cell Environ, 34, pp. 137-148; Rosner, S., Wood density as a proxy for vulnerability to cavitation: Size matters (2017) J. Plant Hydraul, 4, pp. 1-10; Zanne, A.E., Westoby, M., Falster, D.S., Ackerly, D.D., Loarie, S.R., Arnold, S.E.J., Coomes, D.A., Angiosperm wood structure: Global patterns in vessel anatomy and their relation to wood density and potential conductivity (2010) Am. J. Bot, 97, pp. 207-215; King, D.A., Davies, S.J., Tan, S., Noor, N.S.M., The role of wood density and stem support costs in the growth and mortality of tropical trees (2006) J. Ecol, 94, pp. 670-680; Poorter, L., Wright, S.J., Paz, H., Ackerly, D.D., Condit, R., Ibarra-Manríquez, G., Harms, K.E., Mazer, S.J., Are functional traits good predictors of demographic rates? Evidence from five neotropical forests (2008) Ecology, 89, pp. 1908-1920; Nascimento, H.E.M., Laurance, W.F., Condit, R., Laurance, S.G., D'Angelo, S., Andrade, A.C., Demographic and life-history correlates for Amazonian trees (2005) J. Veg. Sci, 16, pp. 625-634; Meinzer, F.C., Lachenbruch, B., Dawson, T.E., (2011) Size-and Age-Related Changes in Tree Structure and Function, , Springer: Dordrecht, The Netherlands; Wiemann, M., Williamson, G., Extreme radial changes in wood specific gravity in some tropical pioneers (1988) Wood Fiber Sci, 20, pp. 344-349; Rueda, R., Williamson, G.B., Radial and vertical wood specific gravity in Ochroma pyramidale (Cav. ex Lam.) Urb (Bombacaceae) (1992) Biotropica, 24, pp. 512-518; Williamson, G.B., Wiemann, M.C., Geaghan, J.P., Radial wood allocation in Schizolobium parahyba (2012) Am. J. Bot, 99, pp. 1010-1019; Bastin, J.-F., Fayolle, A., Tarelkin, Y., Van den Bulcke, J., de Haulleville, T., Mortier, F., Beeckman, H., Bogaert, J., Wood specific gravity variations and biomass of central African tree species: The simple choice of the outer wood (2015) PLoS ONE, 10; Longuetaud, F., Mothe, F., Santenoise, P., Diop, N., Dlouha, J., Fournier, M., Deleuze, C., Patterns of withinstem variations in wood specific gravity and water content for five temperate tree species (2017) Ann. For. Sci, 74, p. 64; Wiemann, M.C., Williamson, B., Testing a novel method to approximate wood specific gravity of trees (2012) For. Sci, 58, pp. 577-591; Wiemann, M.C., Williamson, G.B., Wood specific gravity gradients in tropical dry and montane rain forest trees (1989) Am. J. Bot, 76, pp. 924-928; Wiemann, M.C., Williamson, G.B., Radial gradients in the specific gravity of wood in some tropical and temperate trees (1989) For. Sci, 35, pp. 197-210; Parolin, P., Radial gradients in wood specific gravity in trees of central amazonian floodplains (2002) IAWA J, 23, pp. 449-457; Abe, H., Kuroda, K., Yamashita, K., Yazaki, K., Noshiro, S., Fujiwara, T., Radial variation of wood density of Quercus spp (Fagaceae) in Japan (2012) Mokuzai Gakkaishi, 58, pp. 329-338; Lei, H., Milota, M.R., Gartner, B.L., Between-and within-tree variation in the anatomy and specific gravity of wood in oregon White Oak (Quercus garryana Dougl.) (1996) IAWA J, 17, pp. 445-461; Woodcock, D., Shier, A., Wood specific gravity and its radial variations: The many ways to make a tree (2002) Trees, 16, pp. 437-443; Hérault, B., Beauchêne, J., Muller, F., Wagner, F., Baraloto, C., Blanc, L., Martin, J.-M., Modeling decay rates of dead wood in a neotropical forest (2010) Oecologia, 164, pp. 243-251; Thibaut, B., Baillères, H., Chanson, B., Fournier-Djimbi, M., Plantations d'arbres à croissance rapide et qualité des produits forestiers sous les tropiques (1997) Bois For. Trop, 252, pp. 49-54; Nock, C.A., Geihofer, D., Grabner, M., Baker, P.J., Bunyavejchewin, S., Hietz, P., Wood density and its radial variation in six canopy tree species differing in shade-tolerance in western Thailand (2009) Ann. Bot, 104, pp. 297-306; Hietz, P., Valencia, R., Joseph Wright, S., Strong radial variation in wood density follows a uniform pattern in two neotropical rain forests (2013) Funct. Ecol, 27, pp. 684-692; Osazuwa-Peters, O.L., Wright, S.J., Zanne, A.E., Radial variation in wood specific gravity of tropical tree species differing in growth-mortality strategies (2014) Am. J. Bot, 101, pp. 803-811; Plourde, B.T., Boukili, V.K., Chazdon, R.L., Radial changes in wood specific gravity of tropical trees: Interand intraspecific variation during secondary succession (2015) Funct. Ecol, 29, pp. 111-120; Hillis, W.E., Secondary Changes in Wood (1977) In The Structure, Biosynthesis, and Degradation of Wood, 11, pp. 247-309. , Loewus, F., Runeckles, V.C., Eds.; Plenum Press: New York, NY, USA; Hillis, W.E., (1987) Heartwood and Tree Exudates, , Springer-Verlag: Berlin, Germany; Yang, K.C., (1990) The Ageing Process of Sapwood Ray Parenchyma Cells in Four Woody Species, , Ph.D. Thesis, University of British Columbia, Vancouver, BC, Canada; Royer, M., Stien, D., Beauchêne, J., Herbette, G., McLean, J.P., Thibaut, A., Thibaut, B., Extractives of the tropical wood wallaba (Eperua falcata Aubl.) as natural anti-swelling agents (2010) Holzforschung, 64, pp. 211-215; Amusant, N., Moretti, C., Richard, B., Prost, E., Nuzillard, J.M., Thévenon, M.F., Chemical compounds from Eperua falcata and Eperua grandiflora heartwood and their biological activities against wood destroying fungus (Coriolus versicolor) (2006) Holz Roh Werkst, 65, pp. 23-28; Lehnebach, R., (2015) Variabilité Ontogénique du Profil Ligneux chez les Légumineuses de Guyane Française, , Ph.D. Thesis, Université de Montpellier, Montpellier, France; Sabatier, D., Prévost, M.F., Quelques données sur la composition floristique, et la diversite des peuplements forestiers de guyane francaise (1990) Bois For. Trop, 219, pp. 31-55; Ter Steege, H., Pitman, N.C.A., Phillips, O.L., Chave, J., Sabatier, D., Duque, A., Molino, J.-F., Castellanos, H., Continental-scale patterns of canopy tree composition and function across Amazonia (2006) Nature, 443, pp. 444-447; Ter Steege, H., Vaessen, R.W., Cárdenas-López, D., Sabatier, D., Antonelli, A., de Oliveira, S.M., Pitman, N.C.A., Salomão, R.P., The discovery of the Amazonian tree flora with an updated checklist of all known tree taxa (2016) Sci. Rep, 6, p. 29549; Woodcock, D.W., Shier, A.D., Does canopy position affect wood specific gravity in temperate forest trees? (2003) Ann. Bot, 91, pp. 529-537; Osazuwa-Peters, O.L., Wright, S.J., Zanne, A.E., Linking wood traits to vital rates in tropical rainforest trees: Insights from comparing sapling and adult wood (2017) Am. J. Bot, 104, pp. 1464-1473; Favrichon, V., Classification des espèces arborées en groupes fonctionnels en vue de la réalisation d'un modèle de dynamique de peuplement en forêt guyanaise (1994) Rev. Ecol. Terre Vie, 49, pp. 379-403; (2016) R: A Language and Environment for Statistical Computing, , R Foundation for Statistical Computing: Vienna, Austria; Taylor, A.M., Gartner, B.L., Morrell, J.J., Heartwood formation and natural durability-A review (2002) Wood Fiber Sci, 34, pp. 587-611; Molino, J.F., Sabatier, D., Tree diversity in tropical rain forests: A validation of the intermediate disturbance hypothesis (2001) Science, 294, pp. 1702-1704; Vincent, G., Molino, J.-F., Marescot, L., Barkaoui, K., Sabatier, D., Freycon, V., Roelens, J.B., The relative importance of dispersal limitation and habitat preference in shaping spatial distribution of saplings in a tropical moist forest: A case study along a combination of hydromorphic and canopy disturbance gradients (2011) Ann. For. Sci, 68, pp. 357-370; Pinheiro, J., Bates, D., (2000) Mixed-Effects Models in S and S-PLUS, , Springer-Verlag: New York, NY, USA; Hurvich, C.M., Tsai, C.-L., Bias of the corrected AIC criterion for underfitted regression and time series models (1991) Biometrika, 78, pp. 499-509; Mazerolle, M.J., AICcmodavg: Model Selection and Multimodel Inference Based on (Q)AIC(c), , https://cran.r-project.org/package=AICcmodavg, R Package Version 2.1-0. 2016 (accessed on 1 December 2018); Harrel, F.E.J., Hmisc: Harrell Miscellaneous, , https://CRAN.R-project.org/package=Hmisc, R Package Version 3.14-3. 2016 (accessed on 1 December 2018); De Mendiburu, F., (2016) Agricolae: Statistical Procedures for Agricultural Research, , https://CRAN.R-project.org/package=agricolae, (accessed on 1 December 2018). R Package Version 1.2-4; Morel, H., Lehnebach, R., Cigna, J., Ruelle, J., Nicolini, E., Beauchêne, J., Basic wood density variations of Parkia velutina Benoist, a long-lived heliophilic Neotropical rainforest tree (2018) Bois For. Trop, 335, pp. 59-69; Bossu, J., (2015) Potentiel de Bagassa guianensis et Cordia alliodora pour la Plantation en Zone Tropicale: Description d'une Stratégie de Croissance Optimale Alliant Vitesse de Croissance et Qualité du Bois, , Ph.D. Thesis, Université de Guyane, Kourou, French Guiana; Oldeman, R.A.A., (1974) L'Architecture de la Forêt Guyanaise, , Office de la Recherche Scientifique et Technique Outre-Mer: Paris, France; Anten, N.P.R., Schieving, F., The role of wood mass density and mechanical constraints in the economy of tree architecture (2010) Am. Nat, 175, p. 11; Larjavaara, M., Muller-Landau, H.C., Rethinking the value of high wood density (2010) Funct. Ecol, 24, pp. 701-705; Lachenbruch, B., McCulloh, K.A., Traits, properties, and performance: How woody plants combine hydraulic and mechanical functions in a cell, tissue, or whole plant (2014) New Phyt, 204, pp. 747-764; Chapotin, S.M., Razanameharizaka, J.H., Holbrook, N.M., A biomechanical perspective on the role of large stem volume and high water content in baobab trees (Adansonia spp.; Bombacaceae) (2006) Am. J. Bot, 93, pp. 1251-1264; Kuo, M.-L., Arganbright, D.G., Cellular distribution of extractives in redwood and incense cedar-Part II Microscopic observation of the location of cell wall and cell cavity extractives (1980) Holzforschung, 34, pp. 41-47; Olson, J.R., Carpenter, S.B., Specific gravity, fibre length, and extractive content of young Paulownia (1985) Wood Fiber Sci, 17, pp. 428-438; Stringer, J.W., Olson, J.R., Radial and vertical variations in stem properties of juvenile black locust (Robinia pseudoacacia) (1987) Wood Fiber Sci, 19, pp. 59-67; Gierlinger, N., Wimmer, R., Radial distribution of heartwood extractives and lignin in mature European larch (2004) Wood Fiber Sci, 36, pp. 387-394; Bossu, J., Beauchêne, J., Estevez, Y., Duplais, C., Clair, B., New insights on wood dimensional stability influenced by secondary metabolites: The case of a fast-growing tropical species Bagassa guianensis Aubl (2016) PLoS ONE, 11; Amusant, N., Beauchene, J., Fournier, M., Janin, G., Thevenon, M.-F., Decay resistance in Dicorynia guianensis Amsh.: Analysis of inter-tree and intra-tree variability and relations with wood colour (2004) Ann. For. Sci, 61, pp. 373-380; Hillis, W.E., Distribution, properties and formation of some wood extractives (1971) Wood Sci. Tech, 5, pp. 272-289; Taylor, A., Freitag, C., Cadot, E., Morrell, J., Potential of near infrared spectroscopy to assess hot-watersoluble extractive content and decay resistance of a tropical hardwood (2008) Holz Roh Werkst, 66, pp. 107-111; Amusant, N., Nigg, M., Thibaut, B., Beauchene, J., Diversity of decay resistance strategies of durable tropical woods species: Bocoa prouacensis Aublet, Vouacapoua americana Aublet, Inga alba (Sw.) Wild (2014) Int. Biodeterior. Biodegrad, 94, pp. 103-108; Falster, D.S., Westoby, M., Tradeoffs between height growth rate, stem persistence and maximum height among plant species in a post-fire succession (2005) Oikos, 111, pp. 57-66; Panshin, A.J., de Zeeuw, C., (1980) Textbook of Wood Technology: Structure, Identification, Properties, and Uses of the Commercial Woods of the United States and Canada, , McGraw-Hill: New York, NY, USA; Hernández, R.E., Influence of accessory substances, wood density and interlocked grain on the compressive properties of hardwoods (2007) Wood Sci. Tech, 41, pp. 249-265; Gherardi Hein, P.R., Tarcísio Lima, J., Relationships between microfibril angle, modulus of elasticity and compressive strength in Eucalyptus wood (2012) Maderas. Cienc. Tecnol, 14, pp. 267-274; Cave, I.D., Walker, J.C.F., Stiffness of wood in fast-grown plantation softwoods: Theinfluence of microfibril angle (1994) For. Prod. J, 44, pp. 43-48; Bossu, J., Lehnebach, R., Corn, S., Regazzi, A., Beauchêne, J., Clair, B., Interlocked grain and density patterns in Bagassa guianensis: Changes with ontogeny and mechanical consequences for trees (2018) Trees, 32, pp. 1643-1655; Hart, J., Johnson, K., Production of decay-resistant sapwood in response to injury (1970) Wood Sci. Tech, 4, pp. 267-272; Boddy, L., Microenvironmental Aspects of Xylem Defenses to Wood Decay Fungi (1992) Defense Mechanisms of Woody Plants Against Fungi, pp. 96-132. , Blanchette, R.A., Biggs, A.R., Eds.; Springer: Berlin, Germany; Roszaini, K., Hale, M.D., Salmiah, U., In-vitro decay resistance of 12 malaysian broadleaf hardwood trees as a function of wood density and extractives compounds (2016) J. Trop. For. Sci, 28, pp. 533-540; Stamm, A.J., Density of wood substance, adsorption by wood, and permeability of wood (1929) J. Phys. Chem, 33, pp. 398-414 Approved no  
  Call Number EcoFoG @ webmaster @ Serial 858  
Permanent link to this record
 

 
Author Phillips, P.D.; Thompson, I.S.; Silva, J.N.M.; van Gardingen, P.R.; Degen, B. openurl 
  Title Scaling up models of tree competition for tropical forest population genetics simulation Type Journal Article
  Year 2004 Publication Ecological Modelling Abbreviated Journal Ecol. Model.  
  Volume 180 Issue 2-3 Pages 419-434  
  Keywords tropical rain; forest; population genetics; model SYMFOR; eco-gene; scaling up; competition  
  Abstract Understanding the effects of logging activity on genetic diversity is an important aspect of establishing the sustainability of selective logging management operations in tropical forests. Genetic variation is affected by selective logging directly, through the removal of and damage to trees within the population, and indirectly, through a change in the forest structure and environment in which the remaining population lives. Eco-Gene is a population genetics model applied to tropical forests over a scale of hundreds of hectares. SYMFOR is a modelling framework for individual-based spatially explicit ecological and management models applied to tropical forests over a scale of 0.25 4 ha. We have linked the models to enable simulations using processes involved in both models. To overcome problems of scale, the spatially explicit competition index calculated in SYMFOR simulations has been modelled such that it can be applied at scales representing much larger areas for which the data are not available, as required by Eco-Gene. The competition index is modelled as a distribution on a grid-square basis, and implemented in the linked Eco-Gene/SYMFOR system. Each tree within a grid-square is given a “relative competition” within the distribution, biased according to species. A competition index value is obtained for the tree by transforming the grid-square distribution to be relevant to the size of the tree, and extracting a value according to the tree's relative competition within the distribution. The distribution and each tree's relative competition within it change according to the effects of growth, mortality and logging activity. The model was calibrated using data from the Tapajos region of the Eastern Amazon forest. This paper describes the model, its calibration and validation and the implications of scaling up from an explicit representation to a modelled quantity. (C) 2004 Elsevier B.V. All rights reserved.  
  Address (up) Embrapa Amazonia Oriental, BR-66095100 Belem, Para, Brazil, Email: paul.phillips@envams.co.uk  
  Corporate Author Thesis  
  Publisher ELSEVIER SCIENCE BV Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0304-3800 ISBN Medium  
  Area Expedition Conference  
  Notes ISI:000224635700012 Approved no  
  Call Number EcoFoG @ eric.marcon @ Serial 234  
Permanent link to this record
 

 
Author Phillips, P.D.; de Azevedo, C.P.; Degen, B.; Thompson, I.S.; Silva, J.N.M.; van Gardingen, P.R. openurl 
  Title An individual-based spatially explicit simulation model for strategic forest management planning in the eastern Amazon Type Journal Article
  Year 2004 Publication Ecological Modelling Abbreviated Journal Ecol. Model.  
  Volume 173 Issue 4 Pages 335-354  
  Keywords model; individual; tropical forest; tree; spatial; Brazil; Amazon; competition; species grouping; management; certification; regulation  
  Abstract A model to simulate the ecological processes of tree growth, mortality and recruitment, and the processes of forest management, in the terra firme forests of the eastern Amazon is described. It is implemented within the SYMFOR (http://www.symfor.org) framework. It is based on measurements of all trees that have a diameter greater than 5 cm from experimental plots in the Jari Cellulose and Tapajos National Forest areas over a 16-year period. Ten species groups are used to describe the natural processes affecting tree behaviour. Growth rates are calculated for each species group using the tree diameter and a competition index. Mortality and recruitment are simulated as stochastic processes. Recruitment probability is based on the predicted growth rate of a hypothetical tree. Options exist to vary the human interaction with the forest reflecting forest management decisions, as for other SYMFOR models. Model evaluation compares the performance of the model with data describing forest recovery for 16 years following logging. The model was applied to simulate current forest management practice in the Brazilian Amazon, with 40 m(3) ha(-1) of timber extracted with a cutting cycle of 30 years. Results show that yields are sustained for three harvests following the first logging of primary forest, but that the composition of timber moves towards lightwooded species rather than hardwooded. The predicted size of extracted trees decreases and the number of trees extracted increases with successive harvests, leading to a prediction of increased costs and lower profits for the logging company despite constant yields. The standing volume of all trees just before harvest is reduced by 15% over 150 years, with pioneer species becoming increasingly prevalent in the stand. The model, in the SYMFOR framework, can be used to help understand the differences between alternative forest management strategies in the Brazilian Amazon. Such knowledge is required to improve forest management, regulation and certification, and help to conserve the worlds largest remaining tropical forest. (C) 2003 Elsevier B.V. All rights reserved.  
  Address (up) EMBRAPA Amazonia Oriental, BR-69011970 Manaus, Amazonas, Brazil, Email: Paul.Phillips@envams.co.uk  
  Corporate Author Thesis  
  Publisher ELSEVIER SCIENCE BV Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0304-3800 ISBN Medium  
  Area Expedition Conference  
  Notes ISI:000220392200002 Approved no  
  Call Number EcoFoG @ eric.marcon @ Serial 238  
Permanent link to this record
 

 
Author Perrin, A.-S.; Fujisaki, K.; Petitjean, C.; Sarrazin, M.; Godet, M.; Garric, B.; Horth, J.-C.; Balbino, L.C.; Filho, A.S.; de Almeida Machado, P.L.O.; Brossard, M. url  doi
openurl 
  Title Conversion of forest to agriculture in Amazonia with the chop-and-mulch method: Does it improve the soil carbon stock? Type Journal Article
  Year 2014 Publication Agriculture, Ecosystems and Environment Abbreviated Journal Agric. Ecosyst. Environ.  
  Volume 184 Issue Pages 101-114  
  Keywords Annual crops; Brachiaria; Deforestation; Fire-free; French Guiana; No-tillage  
  Abstract Fire-free forest conversion with organic inputs as an alternative to slash-and-burn could improve agro-ecosystem sustainability. We assessed soil carbon mass changes in a sandy-clayey and well-drained soil in French Guiana after forest clearing by the chop-and-mulch method and crop establishment. At the experimental site of Combi, native forest was cut down in October 2008; woody biomass was chopped and incorporated into the top 20cm of soil. After about one year of legume and grass cover, three forms of land management were compared: grassland (Urochloa ruziziensis), maize/soybean crop rotation with disk tillage and in direct seeding without tillage. There were four replicates. We measured 14.16kgm-2 of carbon in 2mm-sieved soil down to 2m depth for the initial forest. Forest clearing did not induce significant soil compaction; neither did any specific agricultural practice. In converted soils, C stocks were measured in the 0-30cm layer after each crop for three years. Carbon mass changes for soil fractions <2mm (soil C stock) and >2mm (soil C pool) in the 0-5, 5-10, 10-20 and 20-30cm soil layers were assessed on an equivalent soil mass basis. One year and 1.5 years after deforestation, higher C stocks (+0.64 to 1.16kgCm-2yr-1) and C pools (+0.52 to 0.90kgCm-2yr-1) were measured in converted soils, compared to those of the forest into the top 30cm of soil. However, the masses of carbon in these converted soils declined later. The highest rates of carbon decrease were measured between 1.5 and 2 years after forest conversion in the <2mm soil fraction, from 0.46kgCm-2yr-1 (in grassland soils) to 0.71kgCm-2yr-1 (in cropland under no tillage). The carbon pool declined during the third year at rates of 0.41kgCm-2yr-1 (cropland under disk tillage) to 0.76kgCm-2yr-1 (grassland soils). Three years after forest conversion, C masses in the top 30cm of soils for grassland showed similar values than for forest. In comparison, the carbon stock in cropped soils managed under no tillage in direct seeding (without mulch) was significantly 17% and 16% lower than in forest and grassland soils, respectively. None of the studied agricultural practices succeeded in accumulating carbon from the chopped forest biomass. © 2013 Elsevier B.V.  
  Address (up) EMBRAPA Arroz e Feijao, Cx Postal 179, CEP 75375-000 Santo Antonio de Goias, GO, Brazil  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 01678809 (Issn) ISBN Medium  
  Area Expedition Conference  
  Notes Export Date: 2 January 2014; Source: Scopus; Coden: Aeend; doi: 10.1016/j.agee.2013.11.009 Approved no  
  Call Number EcoFoG @ webmaster @ Serial 521  
Permanent link to this record
Select All    Deselect All
 |   | 
Details
   print

Save Citations:
Export Records: